الصفحة 25 - أفضل الأطباء في العالم

Dr. Cagatay Saim Tezel is a Professor of Thoracic Surgery at Memorial Şişli Hospital since 2025. From 2021 to 2025, he was a Professor at Haliç University Faculty of Medicine and at Liv Hospital Ulus. Earlier, he served at SB Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital as a specialist, associate professor, and educational supervisor.

He earned his MD from Ankara University. He completed his Thoracic Surgery specialization at SB Heybeliada Chest Diseases and Thoracic Surgery Hospital from 2000 to 2005. His international training includes a 6‑month observership at the Royal Brompton Hospital and work in the Leicester University clinics. He also attended the STS 41st Annual Meeting and the Ankara University Esophageal Surgery Program. He was part of the Süreyyapaşa Thoracic Surgery Transplant Team. He was an internship lecturer at Yeditepe University from 2013 to 2020. He served on the editorial board of the Heybeliada Medical Bulletin in 2001.

He is a member of the Turkish Thoracic Surgery Society, the European Society of Thoracic Surgeons, the Turkish Thoracic Society, and the European Respiratory Society. He advised a thesis that won third place in the Istanbul Medical Chamber Thesis Competition.

Dr. Tugce Bigis is a skilled dentist. She graduated as valedictorian from Suphi Koyuncuoğlu Anatolian High School. She then completed her dental degree at Ege University Faculty of Dentistry, ranking second in her class. She has shown strong academic performance throughout her studies.

Dr. Bigis continues to improve her skills by attending professional courses, trainings, and congresses. She stays updated on the latest developments in dentistry. Her dedication to learning helps her provide high-quality dental care to her patients.

Dr. Gokhan Ertas is a Professor of Cardiology with more than 20 years of clinical and academic experience. He has published 52 articles in international peer-reviewed journals. He has also contributed 3 chapters to national and international books. Dr. Ertas has presented 20 papers at international meetings and 25 at national meetings. He is dedicated to advancing cardiovascular medicine.

He is a member of the Turkish Society of Cardiology, the European Society of Cardiology, and the Stem Cell and Cellular Therapies Association. Dr. Ertas is recognized for his academic work and active role in the global cardiology community.

Dr. Tumay Ipekci is a Urology Specialist and Professor. He practices at Memorial Şişli Hospital. He is also a faculty member at Bahçeşehir University, Faculty of Medicine, Division of Urology. Dr. Ipekci has worked at Başkent University and VM Medical Park Maltepe Hospital.

He has published 64 articles in national and international journals. He has given 36 presentations at scientific congresses. Dr. Ipekci is a member of the European Association of Urology (EAU), Turkish Urological Association, and the Turkish World Transplantation Society. He serves on the editorial boards of Urology Research and Practice and the Mediterranean Medical Journal.

Dr. Beyza Topcu is an expert in Nutrition and Dietetics. She earned her Bachelor’s degree from Gumushane University (2014-2018). She has worked at Diettherapy Nutrition and Diet Counseling Center, Mestetik Aesthetics and Beauty Center, Estetica Beauty and Aesthetic Center, Academy Fitness, and Zafiran Restaurant.

Dr. Topcu focuses on clinical nutrition, dietary therapy, and wellness programs. She has a strong record of helping patients improve their health. She uses evidence-based methods and provides personalized care. Dr. Topcu is dedicated to promoting better nutrition through effective counseling and practice.

Medical Experience

- *2024 - Present*: Memorial Şişli Hospital  

 Ophthalmology Specialist / Istanbul

- *2022 - Present*: Private Clinic  

 Ophthalmology Specialist / Istanbul

- *2019 - 2022*: Liv Hospital Ulus  

 Ophthalmology Specialist / Istanbul

Medical Education

- *2014 - 2018*: Selcuk University Faculty of Medicine  

 / Konya / Turkey

- *2004 - 2010*: Azerbaijan Medical University Faculty of Medicine  

 / Baku / Azerbaijan

Dr. Koray Tuncer is a gastroenterology specialist at Memorial Şişli Hospital in Istanbul. He has worked there since 2009. He previously served at Private Yunus Emre Hospital from 2003 to 2009.

He earned his MD from Istanbul University, Istanbul Faculty of Medicine (1982–1988). He completed an Internal Medicine residency at SSK Okmeydanı Hospital (1989–1993). He served as Chief Assistant in Internal Medicine at Kartal Training and Research Hospital (1995–1998). He completed gastroenterology fellowships at Haydarpaşa Numune Hospital (1998–1999) and Ege University (1999–2003).

Professional memberships include the Turkish Society of Gastroenterology, the Turkish Association for the Study of the Liver, and the Turkish Medical Association.

He has 5 international and 13 national publications. He has delivered 8 international and 41 national presentations. His additional training includes summer internships at Kantonsspital Aarau (Anesthesiology, 1985) and Kantonsspital Münsterlingen (Internal Medicine, 1987). He regularly attends postgraduate gastroenterology and hepatology courses and national congresses.

Prof. Dr. Nesrin Sarıman graduated from Marmara University Faculty of Medicine (English) in 1990 and completed her specialization in “Chest Diseases and Tuberculosis” at Fatih Sultan Mehmet Training and Research Hospital. She worked at Maltepe University Faculty of Medicine Hospital between from 2004 till 2022, obtaining the titles of associate professor and professor. Her primary areas of interest include; Obstructive Lung Diseases (Asthma-Allergy, COPD), Sleep Disorders (Obstructive Sleep Apnea Syndrome), Lung Cancer, and Smoking Cessation Treatments. She is a bronchoscopy specialist and sleep physician. She has published articles in national and international journals and has authored book chapters. She participated in a multicenter international clinical study on asthma. She has taught undergraduate and graduate courses and supervised master’s theses. She has served as a member of the Clinical Research Ethics Committee. She holds memberships in national and international associations. During the COVID-19 pandemic, she actively participated in COVID-19 services. During her years at Maltepe University Faculty of Medicine, she undertook numerous administrative and academic roles, including serving as the editor of “Maltepe Medical Journal” and as the assistant dean from 2019 till 2022. She participated in certified training programs organized under the Ministry of Health GETAT applications at Medipol University in “Functional Medicine” and “Phytotherapy” and completed training in “Hypnosis Application Training”

Dr. Serhat Seyhan is a medical genetics specialist. He is the Head Physician at the Genetic Disorders Evaluation Center, Memorial Şişli Hospital in Istanbul. He has also led genetic evaluation centers at Biruni University Hospital and Bakırköy Dr. Sadi Konuk Training and Research Hospital. Dr. Seyhan chaired the Department of Medical Genetics at Istanbul Medipol University.

He completed his medical genetics training at Karadeniz Technical University. He earned his MD from Cumhuriyet University. Dr. Seyhan gained international experience as a short-term scholar at the University of Miami. He is known for his leadership in clinical genetics and his academic work in the field.

Dr. Onur Telli is a skilled urologist and pediatric urology specialist. He is known for his work in diagnosing and treating congenital urogenital anomalies. He has received awards from the European Association of Urology and the European Society for Pediatric Urology. These honors reflect his strong clinical and research skills.

Dr. Telli has published over 50 international articles and contributed to three book chapters in pediatric urology. His research includes important population-based studies, especially on nocturia in women of reproductive age. He is an active member of major urological associations. This shows his dedication to improving the field.

Prof. Mustafa Sağlam, M.D. graduated from Marmara University School of Medicine in 1994 and has specialized in Endovascular Repair of the Aneurysm of Abdominal Aorta, Stress Test for imaging the Coronary Artery Diseases, Ambulatory Cardiac Monitoring, Holter Test, Balloon Valvuloplasty and Temporary Pacemaker. He is currently the Head of the Cardiology Department in Hisar Hospital Intercontinental.

Dr. Süveyda Gözüküçük completed her medical education at Çukurova University Faculty of Medicine. She then specialized in Infectious Diseases at Erciyes University Faculty of Medicine and is currently serving her patients in the Infectious Diseases department at Hisar Hospital Intercontinental. Her medical interests include Infection Management in Special Convalescence (Immunocompromised), Hospital Infections, and Sterilization and Disinfection.

MEDICAL INTERESTS

• Hospital Infections
• Sterilization and Disinfection
• Hepatitis

2020 - Present, Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Orthopedics and Traumatology Specialist

2013 - 2020, Istanbul/Türkiye

NISA HOSPITAL

Orthopedics and Traumatology Specialist

2009 - 2013, Istanbul/Türkiye

MEDILIFE HOSPITAL

Orthopedics and Traumatology Specialist

2008 - 2009, Diyarbakir/Türkiye

DIYARBAKIR MILITARY HOSPITAL

Orthopedics and Traumatology Specialist

2004 - 2008, Istanbul/Türkiye

GÜLHANE MILITARY MEDICAL ACADEMY

Orthopedics and Traumatology Specialist Training

2003 - 2004, Kocaeli/Türkiye

TCG GÖKSU NAVAL FORCES COMMAND

Medical Officer, General Practitioner

2002 - 2003, Muğla/Türkiye

TCG MUTUAL NAVAL FORCES COMMAND

Medical Officer, General Practitioner

2001 - 2002, Ankara/Türkiye

ANKARA TRAINING AND RESEARCH HOSPITAL

Medical Officer, General Practitioner

Op. Dr. Yasemin Ongun is a specialist in Ear, Nose, and Throat (ENT) and Head & Neck Surgery. She graduated from Kocaeli University Faculty of Medicine in 2005. In 2008, she completed advanced training in Otology-Neurotology, Audiology, and Head and Neck Surgery at Hacettepe University.

Dr. Ongun has worked in both public and private healthcare settings. She served at Şanlıurfa Mehmet Akif İnan Training and Research Hospital and held the position of deputy chief physician in private hospitals. She has performed many surgeries, with a focus on rhinoplasty, endoscopic sinus surgery, pediatric ENT procedures, otoplasty, and hearing-related operations.

Medical Experience

- *2024 - Present*: Memorial Şişli Hospital  

 Ophthalmology Specialist / Istanbul

- *2022 - 2024*: Liv Hospital Ulus  

 Ophthalmology Specialist / Istanbul

- *2021 - 2022*: Private Clinic  

 Ophthalmology Specialist / Istanbul

- *2019 - 2021*: Şişli Hamidiye Etfal Training and Research Hospital  

 Ophthalmology Specialist / Istanbul

- *2017 - 2019*: Gaziosmanpaşa Taksim Training and Research Hospital  

 Ophthalmology Specialist / Istanbul

- *2015 - 2017*: Tirebolu State Hospital  

 Ophthalmology Specialist / Giresun

 Medical Education

- *2011 - 2015*: Cumhuriyet University Hospital  

 / Sivas / Turkey

- *2000 - 2007*: Gazi University Faculty of Medicine  

 / Ankara / Turkey

Prof. Dr. Ayla Güven graduated from Gazi University Faculty of Medicine in 1986 and completed her mandatory service at Ege University Chest Diseases Bornova Tuberculosis Dispensary. Following that, she started her specialization training in the Department of Child Health and Diseases at Hacettepe University Faculty of Medicine and became a specialist in 1993. After working as a specialist physician, she began her subspecialty training in Pediatric Endocrinology at Gazi University Faculty of Medicine in September 2000 and became a Pediatric Endocrinology specialist in December 2002. In April 2003, she started working as an assistant professor at Ondokuz Mayıs University Faculty of Medicine and worked in the Pediatric Endocrinology and Diabetes Department at the Children’s Hospital of Pittsburgh, USA, between May and November 2003. After returning to Turkey, she continued to work at Ondokuz Mayıs University Faculty of Medicine. This clinic was the first to offer Pediatric Endocrinology subspecialty training in the country. During her time there, one person became a Pediatric Endocrinology specialist. On March 13, 2006, she successfully passed the exam and received the title of Associate Professor. Since December 2006, she has been working at Göztepe Training and Research Hospital. In this hospital, she was appointed as the head of the Pediatric Endocrinology clinic in November 2008 and started providing Pediatric Endocrinology subspecialty training for the first time in the hospital in March 2009. Between 2009 and 2017, she trained five Pediatric Endocrinology specialists. Most of the physicians she currently provides subspecialty training to have gained academic titles as professors and associate professors. After working as a training instructor at Health Sciences University Zeynep Kamil Hospital for Children and Women from 2017 to 2021, she retired at her request from public service. Between 2021 and 2024, she worked as a Pediatric Endocrinology specialist at Başkent University Faculty of Medicine, Department of Child Health and Diseases, at Istanbul Hospital.

MEDICAL INTERESTS

• Menstrual disorders and increased hair growth in girls, polycystic ovary syndrome
• Adrenal diseases
• Sexual development disorders
• Type 2 diabetes
• Thyroid diseases
• Growth disorders: short stature and tall stature
• Puberty disorders: precocious puberty-delayed puberty

Dr. Alihan Gurkan is a gastrointestinal surgeon with over 25 years of experience. He specializes in bariatric and advanced gastrointestinal procedures. For more than ten years, he led the Department of General Surgery. He is known for his focus on patient safety and his commitment to international standards.

Dr. Gurkan is a member of several professional organizations, such as the American Society of Transplant Surgeons and the Turkish Society of Surgery. He completed advanced fellowships in cardiovascular and multi-organ transplantation at leading US institutions. His practice is known for high success rates and the use of modern surgical techniques.

Dr. Ismail Onder Uysal is a specialist in plastic surgery and ENT with over 26 years of experience. He has performed around 2,500 procedures. He is known worldwide for his skills in rhinoplasty, including open and closed techniques and revision surgeries.

Dr. Uysal graduated from Cumhuriyet University in 1999. He has worked as a lecturer in academic medicine and has published in international medical journals. Many patients from different countries seek his advanced surgical care.

Medical Experience:

- 2024 - Present: Memorial Şişli Hospital  

 Specialist in Internal Medicine and Hematology / Istanbul

- 2017 - 2024: Istanbul Florence Nightingale Hospital  

 Specialist in Internal Medicine and Hematology / Istanbul

- 2015 - 2017: Eskişehir Yunus Emre State Hospital  

 Hematology Specialist - Compulsory Service / Eskişehir

Medical Education:

- 2020 - 2024: Istanbul Florence Nightingale Hospital  

 Demiroğlu Bilim University, Faculty of Medicine / Istanbul, Turkey

- 2017 - 2020: Istanbul Florence Nightingale Hospital  

 Demiroğlu Bilim University, Faculty of Medicine / Istanbul, Turkey

- 2011 - 2015: Eskişehir Osmangazi University, Faculty of Medicine, Department of Hematology / Eskişehir, Turkey

- 2009 - 2011: Harvard University, Faculty of Medicine / Boston, USA

- 2000 - 2008: Ankara University, Faculty of Medicine / Ankara, Turkey

- 1994 - 2000: Ankara University, Faculty of Medicine / Ankara, Turkey

Attended Professional Trainings, Courses, and Conferences:

- European Society for Blood and Marrow Transplantation, 3rd EBMT International Transplant Course, Barcelona, Course, 07.09.2018-09.09.2018 (International)

- Turkish Academy of Blood Science, Lymphoma Masterclass, Istanbul, Course, 01.09.2016-01.03.2017 (National)

- Advanced Life Support Course, Istanbul

Membership in Professional Associations:

- European Society for Blood and Marrow Transplantation

- Turkish Academy of Blood Science

- Advanced Life Support Course

2012 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL ATASEHIR HOSPITAL

Pediatric Chest Diseases Specialist \ Pediatric Health and Diseases Specialist

2012 - Present, Istanbul/Istanbul/Türkiye

MEMORIAL SISLI HOSPITAL

Pediatric Chest Diseases Specialist \ Pediatric Health and Diseases Specialist

1995 - Present, Istanbul/Istanbul/Türkiye

MARMARA UNIVERSITY FACULTY OF MEDICINE

Member of the Department of Pediatric Chest Diseases